Hydrocarbon-burner.



No. 722,155. PATENTED MAR. 3, 1903. H. L. SHERWOOD.

HYDROCARBON BURNER.

APPLICATION FILED MAR. 7, 1902.

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No. 722,155. PATENTED MAR. 3, 1903. H. L. SHERWOOD. HYDROGARBON BURNER.

APPLICATION TILED MAR. 7, 1902.

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No. 722,155. PATENTED MAR. 3 1903.

.H. L. SHERWOOD.

HYDROGARBON BURNER.

APPLICATION FILED MAR. 7. 1902.

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SPECIFICATION forming part of Letters Patent N 0. 722,155, dated March 3, 1903.

- Application filed March '7, 1902. Serial No. 97,140. (No model.)

To ctZZ whom it may concern:

Be it known that I, HARLEY LEROY SHER- WOOD, a citizen of the United States, residing at Oakland, in the county of Alameda and State of Oalifornia,have invented certain new and useful Improvementsin Hydrocarbon- Burners, of which the following is a specification.

My invention relates to improvements in oil-burners, the object of my invention being to provide an improved form of oil-burner which can be used in the grates of ordinary domestic stoves and ranges, which shall be cheap and simple in construction, which can be easily taken apart to be cleaned, which shall effectually vaporize the oil so as to produce a flame therefrom, which shall be free from smoke and of great intensity, and which shall conveniently distribute the flame for use in the ordinary operations of cooking.

My invention therefore resides in the novel construction, combination, and arrangement of parts for the above ends, hereinafter fully specified, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a perspective view of my improved burner. Fig. 2 is a longitudinal section of the same. Figs. 3 and 4 are perspective views of details. Fig. 5 is a perspective view of the burner, showing a modified form of clamp for clamping together the two sections thereof. Fig. 6 is a bottom plan view of the burner proper, shown in Fig. 1. Fig. 7 is a similar view showing a modified form of clamp. Fig. 8 is a longitudinal section through one of the clamping-arms, showing the other in transverse section. Fig. 9 is a perspective view of a modified form of burner. Fig. 10 is a longitudinal section of the same.

Upon reference to the drawing it will be seen that the burner comprises two sections, an inner section 1 and an outer section 2. In the form of the invention shown in Figs. 1, 2, and 5 each section is cylindrical in the lower part thereof and conical in the upper part. The inner section has formed on its outer surface a groove 3, which, commencing at the apex of the cone, extends spirally therefrom to the base of the cone, and thence extends in a helical form around the surface of the cylinder to the bottom thereof. The inner surface of the upper section is smooth, so as to fit snugly upon the outer surface on the inner section between the coils of the groove. The oil, which is admitted by means of a pipe 4 to the interior of the hollow inner section 1,

and thence passing upward by a pipe 5 to the apex of said inner section, thus travels in a very circuitous path in the groove on the outside of said inner section until it reaches the bottom of the outer section. By this time it has become vaporized by the heat of the flame around the burner, and the vapor passes through conduits formed in the interior of nozzles 6 from the outer section, being discharged through upwardly-extending orifices 7. The flame of the burning vapordischarged through said orifices is directed against wings 8, extending longitudinally from a spreader 9, which is supported by legs 10 upon a ledge 11, formed on the outside of the outer section at the junction of the cylindrical and conical portions. The flames thus directed are deflected partly upon the wall of the burner and have the effect of heating the burner, thus vaporizing the oil which is slowly descending in the spiral or helical groove. Thus the oil, being forced to travel through a long and circuitous path in a highlyheated material, is completely vaporized, and the flame of combustion of the resulting vapor is completely free from smoke.

Great difficulty has heretofore been experienced in the construction of retort vaporizers for burning oil in preventing the escape of the vapor at the points of juncture of the parts of the burner. It is desirable to make the burner in sections to facilitate the cleaning of the same, which may occasionally be necessary. The burner being made in sections fitting closely together, it has heretofore been difficult tomake a joint between the sections which shall be gas-tight, especially after the expansion of the parts due to the extreme heat to which they are subjected. An important feature of my invention resides in the means for accomplishing this object. I accomplish this by providing that the two parts of the burner shall be joined together,

in a plane below the outlet for the vapor and below the flame thereof. The joint between the two sections is not then subjected to the action of the directheat from the flame great pressure by the following contrivance.

Said flanges have formed thereon radial proj ections 17 18,1-egistering with each other, and around each pair of projections is passed a link 19, having its lower portion extended inward below the flange of the lower section. A wedge 20 is then driven in as firmly as possible between the flange of the lower section and the upper surface of the inwardly-extending portion of the link. By this means the two sections are forced together with great pressure, so as to tightly compress the copper ring or washer within the V-shaped grooves. It is found that this construction makes a joint gas-tight against a very high pressure of gas.

I extend the nozzles or spouts 6 to some distance beyond the orifices 7 and close the same by means of screw-plugs 21. These may be readily removed when desired for the purpose of cleaning said nozzles.

After the whole burner has been put together it is supported by seating the lower ends of the links 19 in the socketed baseblocks 22 cast or otherwise formed upon the base-plate 23. Said base-plate is of suitable form to stand in the fire-box of a cooking stove or range, and the flames from the two orifices will then be spread underneath the holes in the stove-top. In lighting the burner it will be necessary to first ignite upon the base-plate a small quantity of waste or shavings or other combustible material for the purpose of heating the burner to vaporize the oil flowing therethrough.

In the modified form of the invention shown in Fig. 5 the flanges of the two sections have formed therein at intervals recesses registering vertically,and in said recesses are received the stems of bolts 24, upon the upper end of which are passed nuts 25. By screwing the nuts upon the bolts the two flanges may be firmly pressed together. in this modification be provided with suitable standards 26, cast or otherwise formed thereon to support the burner as shown.

In Figs. 7and 8 is shown a modified construction for clamping the parts together. In this construction there are provided crosspieces 27 28, which cross each other, as shown in Fig. 7, and pass through the lower ends of the links, and between said cross-pieces and the under side of the inner section are then driven the wedges 20.

In the form of the invention shown in Figs. 9 and 10 the parts of the two sections which The base-block will form the retort for vaporizing the oil are made wholly conical in form. Between said conical parts is inserted a spiral copper wire 29, also of a conical form. When the two sections are pressed together with great pressure, the copper-wire coil is wedged tightly between the sections and forms a spiral conduit for the oil to descend from the apex to the nozzles. In this form of the invention the annular grooves which receive the copper washer are shown slightly differing in their form from those in Fig. 2. Also the manner of clamping the two sections together is somewhat different, there being used for this purpose overeach pair of projectionsa staple 30, having secured on its ends by nuts 31 a keeper 32, passing under the projections from the lower section.

The two nozzles are used to take the place of two projections from the flange of the upper section. In this modification also the wings 8 of the spreader are shown as perforated, as at 33, and the legs thereof are necessarily made longer to rest upon the flange of the upper section instead of upon the shelf, as formerly.

I claim 1. In an oil-burner, the combination of a suitable base, upper and lower detachable sections resting on said base, each having an upwardly-pointed conical portion, said portions fitting one within the other and provided with means for forming a spiral conduit between the two portions, a nozzle extending from one of said sections and connected with the lower portion of said conduit, an oil-supply pipe connected with the upper portion of said conduit, means for making a gas-tight joint between two sections, and a spreader supported upon said burner and having a wing arranged to be impinged upon by the flames from said nozzle, substantially as described.

2. In an oil-burner, the combination of a suitable base, inner and upwardly pointing conical shells resting on said base fitting one within the other, one of said shells having formed on the surface next to the other shell a spiral groove, means for admiting oil into said groove, a chamber carried by one of said shells at the bottom thereof into whichthe vapor from the oil descends, a conduit extending outward from said chamber to conduct the vapor therefrom,and a spreader supported on the top of the burner against which the flame of the vapor so escaping impinges, substantially as described.

3. In an oil-burner, the combination of a suitable base, inner and outer upwardlypointed conical shells resting on said base, means for making a gas-tight joint between the bases of the cones, a gas-chamber conne'cted with the space between said shells, a discharge-passage from said gas-chamber, and a spreader at the top of the burner against which the vapor from said gas-chamber impinges, substantially as described.

4. In an oil-burner, the combination with a burner of conoidal form provided with a discharge-aperture discharging upwardly therefrom, of a spreader comprising a frame standing upon said burner and rotatable thereon, and having a wing arranged to receive the vapor from said discharge-aperture, substantially as described.

5. In an oil-burner, the combination of upper and lower detachable sections, each having an upwardly-pointed conical portion, said portions fitting one within the other and provided with means for forming a spiral conduit between the two portions, a nozzle extending from one of said sections and connected with the lower portion of said conduit, an oil-supply pipe leading to the interior of the lower section and upwardly therein to the apex of said section, and there connected with the upper portion of said conduit, means for making a gas-tight joint between the two sections, and a spreader supported on said burner having lugs resting upon the outside of the outer section and having a wing arranged to be impinged upon by the flames from said nozzle, substantially as described.

6. In an oil-burner, the combination of inner and upwardly-pointing conical shells fitting one within the other, one of said shells having formed on the surface next to the other shell a spiral groove, an oil-supply pipe leading to the interior of the inner shell and then upward to the apex of said shell, and there connected with said groove, a chamber carried by one of said shells at the bottom thereof into which the vapor from the oil descends, a conduit extending downward from said chamber to conduct the vapor therefrom, and a spreader supported on the top of the burner against which the flame of the vapor so escaping impinges, substantially as described.

7. In an oil-burner the combination of inner and outer upwardly-pointed conical shells, means for making a gas-tight joint between the bases of the cones, an oil-supply pipe extending to the interior of the inner shell and thence upwardly to the apex of said shell and there connected with the spaces between the shells, a gas chamber connected with the space between the shells, a discharge-passage from said gas-chamber, and a spreader at the top of the burner against which the vapor from said gas-chamber impinges, substantially as described.

In witness whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HARLEY LEROY SHERWOOD.

Witnesses:

FRANCES M. WRIGHT, Bnssrn GORFINKEL. 

